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Substrate and imageable element with hydrophilic interlayer

A technology for imaging elements and interlayers, applied in transportation and packaging, preparation of printing surfaces, and coating equipment for photographic plate-making processes, etc.

Inactive Publication Date: 2012-12-12
EASTMAN KODAK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Although there are many described interlayer materials for substrates in lithographic elements, the adhesion between the metal or polymeric substrate and the overlying imageable layer may still be improved

Method used

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  • Substrate and imageable element with hydrophilic interlayer
  • Substrate and imageable element with hydrophilic interlayer
  • Substrate and imageable element with hydrophilic interlayer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0213] Synthesis Example 1: Interlayer Compound A (IC-A):

[0214] Step 1: MEK (330.8 g, dried on molecular sieves), 100 g Jeffamine ED-2003 (0.10 equivalents, polyetherdiamine with a main polyethylene glycol backbone, MW=2000, purchased from Huntsman) and 5.06 g Triethylamine (0.05 eq.) was added to a four-necked 1000 ml flask equipped with a heating mantle, temperature controller, mechanical stirrer, condenser, pressure-balanced addition funnel, and nitrogen inlet. Then, 5.22 g (0.05 eq.) of methacryloyl chloride were added within 15 minutes at 25°C while keeping the reaction temperature below 35°C. After two hours the temperature was raised to 50°C and stirred for another hour. The reaction mixture was cooled to room temperature. Triethylamine hydrochloride (TEA: HCl salt) was removed by filtration. To the solution was added MEHQ (0.055 g). MEK was removed under vacuum (100 mm) and heat (45 °C). About 100 g of intermediate are obtained.

[0215] Step 2: The intermedia...

Embodiment 2

[0216] Synthesis Example 2: Interlayer Compound A1 (IC-A1):

[0217] Step 1: MEK (331.9 g, dried on molecular sieves), 90 g Jeffamine ED-900 (0.20 equivalents, polyetherdiamine with a main polyethylene glycol backbone, MW=2000, purchased from Huntsman) and 10.19 g Triethylamine (0.1 eq.) was added to a four-necked 1000 ml flask equipped with a heating mantle, temperature controller, mechanical stirrer, condenser, pressure-balanced addition funnel, and nitrogen inlet. Then, 10.45 g (0.1 eq.) of methacryloyl chloride were added within 15 minutes at 25°C while keeping the reaction temperature below 35°C. After two hours the temperature was raised to 50°C and stirred for another hour. The reaction mixture was cooled to room temperature. Triethylamine hydrochloride (TEA: HCl salt) was removed by filtration. To the solution was added MEHQ (0.055 g). MEK was removed under vacuum (100 mm) and heat (45 °C). About 90 g of intermediate are obtained.

[0218] Step 2: The intermediate ...

Embodiment 1

[0219] Comparative synthesis example 1: interlayer compound B (IC-B):

[0220] Step 1: MEK (330.8 g, dried on molecular sieves), 100.0 g polyethylene glycol (0.10 equivalent, MW=2000, purchased from Alfa Aesar) and 5.06 g triethylamine (0.05 equivalent) were added to a heating mantle , a temperature controller, a mechanical stirrer, a condenser, a pressure-balanced addition funnel, and a four-neck 1000 ml flask with nitrogen inlet. Then, 5.22 g (0.05 eq.) of methacryloyl chloride were added within 15 minutes at 25°C while keeping the reaction temperature below 35°C. After two hours the temperature was raised to 50°C and stirred for another hour. The reaction mixture was cooled to room temperature. Triethylamine hydrochloride (TEA: HCl salt) was removed by filtration. MEHQ (0.055 g) was added to the solution and MEK was removed under vacuum (100 mm) and heat (45 °C). About 90 g of intermediate are obtained.

[0221] Step 2: The intermediate from Step 1 (56.9 g, 0.0275 equi...

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Abstract

A substrate useful for forming lithographic printing plate precursors includes a metal or polymer support and an interlayer comprising a trialkoxysilyl polyethylene glycol acrylate having the following Structure (I): wherein R1 and R2 are independently hydrogen or C1 to C6 alkyl, C1 to C6 alkenyl, C1 to C6 alkoxy, C1 to C6 acyl, C1 to C6 acyloxy, phenyl, halo, or cyano groups, or R1 and R2 together can form a cyclic group, R3 is hydrogen, or a C1 to C6 alkyl, phenyl, halo, or cyano group, R4 and R5 are independently hydrogen or methyl groups, R6 is hydrogen or a C1 to C12 alkyl group, X1 is —O— or —NR— wherein R is hydrogen or an alkyl or aryl group, X2 is —NR′— wherein R′ is hydrogen or an alkyl or aryl group, m is an integer of from 15 to 200, and n is an integer of from 1 to 12. The lithographic printing plates can be negative-working and particularly useful for on-press development and have a sulfuric acid-anodized aluminum support.

Description

technical field [0001] The present invention relates to hydrophilic substrates having a unique interlayer and to imageable elements such as negative working lithographic printing plate precursors having said hydrophilic substrates. The invention also relates to methods of using these imageable elements. Background technique [0002] Radiation-sensitive compositions are commonly used in the preparation of imageable materials, including lithographic printing plate precursors. Such compositions typically include a radiation-sensitive component, an initiator system, and a binder, each of which has been the focus of research to provide various improvements in physical properties, imaging performance, and image characteristics. [0003] Recent developments in the field of printing plate precursors involve the use of radiation-sensitive compositions that can be imaged by lasers or laser diodes, and more specifically can be imaged and / or developed on-press. Because the laser can b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41N3/03G03F7/075
CPCG03F7/16B41C2210/22B41C2201/14B41C2210/24B41C2210/04B41C1/1016B41C2210/08B41N3/036B41C2201/02Y10T428/273Y10T428/24612Y10T428/31725Y10T428/31609
Inventor T·陶E·克拉克S·萨赖亚F·E·米克尔
Owner EASTMAN KODAK CO